Threaded View

DatePicker - change style/color of individual dates?

I am looking into using the Sencha DatePicker - but have a few things that I don't understand how to do.

Firstly, let's say I want the entire thing (including the fonts, etc) double-sized - literally say scaled up to 200% (or 300%, etc). How do I do this? Is providing a DatePickerAppearance the only way to do so?

Secondly, say I want to mark specific dates with a different background color - say the birthdays of family members, things like that. How do I change the style/color/whatever of a specific date on a given DatePicker?